At the moment we do resolve template 2 times for some historical reasons
This leads to {% raw %} tag as well as any other content be not respected
on the second renderring, since after the first one these tags
are gone, so no escaping or whatsoever work.
At the same time there're no obvious reasons to render second time,
since all override content is being renderred already. So there should
not be anything left that indeed needs this second run.
Change-Id: I414b1b3b4e426316707dda23b9aeff6b6f4f7c2f
Closes-Bug: #1649381
e528ed0e9e